AIR, Fuel, Speedo
Breathe deep but do not kink the Crankcase Vent hose or the gearshift oil seal on the left side will pop off at an angle an allow oil to leak out.
I have an opinion that the tank is not being removed and during some of the gyrations of the airbox the hose gets kinked. It is cheap hose material.
A look from the left side and you should be able to see the hose all the way to the airbox. >Flashlight needed<<
Some people have petcock issues, seems like a vacuum lock between petcock and float valve. A flipping of the spring and vacuum diaphragm
in the petcock gives you manual operation. Some have gone to Pingel petcock.
There was a 2007 petcock recall due to separation of fiber and rubber. which resulted in a "Cover replacement" as the repair.
Want to see more about the carb, MR VTX has many pix on his "carb exposed" thread>
The carb seems to work well, EXcept the Starter Enrichment (SE)valve when it closes.
When the valve closes it does not have a good transition to run at idle. Hold the RPM a bit or do as I do and wait until after the
3rd gear shift before manually closing it. It has a friction nut to adjust the SE valve closing by altering pressure on the knob shaft.
The shaft has about 3/32 to 1/8" showing when the valve is closed. A spring will close the SE valve if the friction nut is not too tight.
Some have changed the jets when they open the air box or use a free flow air filter.
Most of those that richen the low speed jet find they do not need the SE.
The only normal wear item is the "Slide Valve" diaphragm. At 93k miles the OEM had developed so many holes/slits
that my top speed was 55 or so MPH. After another 93k miles, the first replacement had small holes/slits. More de-cel popping than normal.
Instead on investing in a $69 slide valve($60 moly coated valve + $9 diaphragm) I went with a JBM Industries $25 diaphragm.
Speedo is on the fuel tank and it may rattle. The rear 3 screws on the speedo housing fasten it to the tank.
The shoulder screws prevent the plastic from getting crushed but it could allow rattling.
O-rings or tape folded over and a hole cut into it may stop rattles.
Sometimes the speedo display can rattle if it has removed from the housing.
If you ever remove the speedo housing off you may have pushed off a small rubber insulator that fits over nose piece.